It wasn't until the GP4000S came out tested well on the Bike Tech Review test -- and after lots of people started talking about them -- that I finally tired one (yep, only one). I decided they were ok enough to use as rear training tyres (jee, how generous of me), then, after using them for a while, I eventually started sometimes using them as rear race tyres. Now I also occasionally use a Four Season or Gator as a rear on my wet day bike.

As others have said, the GP4000S is a very good all-round tyre, without being super-fast.

It wasn't until the GP4000S came out tested well on the Bike Tech Review test -- and after lots of people started talking about them -- that I finally tired one (yep, only one). I decided they were ok enough to use as rear training tyres (jee, how generous of me), then, after using them for a while, I eventually started sometimes using them as rear race tyres. Now I also occasionally use a Four Season or Gator as a rear on my wet day bike.

As others have said, the GP4000S is a very good all-round tyre, without being super-fast.

The Pro3 and GP4000s are about equal if you trade off their strengths.

The Pro3 rides a fair bit nicer compared to the GP4000s (which feels kinda 'dead' and 'wooden' if pumped over 105psi for a 23c tyre). The GP4000s is less prone to cuts (though the Pro3 is no where as vulnerable as the Corsa Evo's nor the Veloflex Records or GP Supersonics. )

Their differences are about equal and level of each other. So it will really depend on which is your priority.

The Pro3 and GP4000s are about equal if you trade off their strengths.

The Pro3 rides a fair bit nicer compared to the GP4000s (which feels kinda 'dead' and 'wooden' if pumped over 105psi for a 23c tyre). The GP4000s is less prone to cuts (though the Pro3 is no where as vulnerable as the Corsa Evo's nor the Veloflex Records or GP Supersonics. )

Their differences are about equal and level of each other. So it will really depend on which is your priority.

I've got some pro4 endurance tires coming in the mail (in a 25mm) for the winter. Can't wait to try the new profile.

Then will probably go with some vittoria evo's as the season gets under way.

Been on these since the fall weather came in here in New England. About 600 miles and no issues. At about 75-80 psi they ride GREAT! FWIW was riding Pro Race 3 and have a set of Ultremo's 23mm that I was going to use when the warmer weather arrives, but may get some new Ultremo's in 25mm instead. A little more weight but ride quality and handling are much improved.

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